If it is a genre, hold music, it's fair to say, is a troubled one with few hits. It's not really meant to be loved or even listened to — it's meant to communicate something specific: Don't hang up. (Cornell makes this plea specifically at the end of his song.) Silence is believed to be a death knell for phone calls — people will simply think the line is dead and hang up. This is true even on non-hold calls; it's why phone companies transmit something called a "comfort tone" over phone lines, a barely audible synthetic noise that signals a connection is still there.
The included software is easy to use, although, sadly, won't work with an Apple computer (which is why I downgraded my review by one star). I solved that problem by bringing an old Windows-based computer out of retirement.

Once your project is produced, you’ll be able to deploy your MOH program right to your phone system. Or let us handle the implementation with our remote load solutions.
“Evolved Sound’s phone on hold solutions will exclude your business from paying any licence fees to any regulatory or governing body, resulting in significant yearly savings, particularly when multiple lines exist.” Finished telephone on hold messages are mixed with complimentary music and finalised for best playback quality to callers.